Shoulder bag



FIG. 1 is a perspective view of a shoulder bag showing my new design as worn on a user's shoulder;

FIG. 2 an alternate perspective view thereof showing the bag off a shoulder; and,

FIG. 3 is a sectional view taken on line 3--3 of FIG. 1.

The broken line showing of a person in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a shoulder bag, as shown and described. 